In modern industrial settings, oil pump motors are widely used, but motor burnout remains a significant issue in production. To reduce such incidents and enhance motor efficiency comprehensively, it is essential to implement proper maintenance and operational practices. Below is a detailed guide to help prevent motor failures and ensure long-term performance.
1. **Maintain Cleanliness**: Keeping the motor clean is crucial for its longevity. The air inlet must remain free of dust, water, and oil at all times. Within a 3-meter radius of the inlet, no debris should be present, as these can be sucked into the motor, causing insulation damage and short circuits. This leads to increased current and temperature, ultimately resulting in motor failure. Ensuring good ventilation and sufficient insulation resistance helps maintain the motor’s stability over time.
2. **Operate at Rated Current**: Overloading is one of the primary causes of motor burnout. This often occurs due to excessive load, low voltage, or mechanical jams. When a motor runs overloaded, its speed decreases, current increases, and temperature rises, leading to overheating and eventual damage. Monitoring the transmission system for smooth operation and adjusting belt tension, coupling alignment, and gear flexibility can prevent such issues. If any jamming is detected, stop the machine immediately to investigate and resolve the problem.
3. **Ensure Balanced Three-Phase Current**: For three-phase asynchronous motors, the current in each phase should not differ by more than 10% from the average of the other two phases. Any imbalance indicates a potential fault that needs immediate attention. Continuing operation without addressing the issue may lead to further damage and motor burnout.
4. **Monitor Temperature**: Regularly check the temperature of critical motor components like bearings, stators, and housings. For motors without overload protection, temperature monitoring is especially important. If the bearing temperature rises excessively, inspect it for damage, oil shortage, cracks, or misalignment. Replacing faulty bearings promptly prevents further damage and motor failure.
5. **Observe Vibration, Noise, and Odor**: Unusual vibration, noise, or burning smells are early signs of motor malfunction. These can increase load and current, leading to overheating and failure. Inspect anchor bolts, end caps, and connection devices for looseness. Addressing these issues promptly can prevent major accidents.
6. **Ensure Proper Starting Equipment Functionality**: The condition of starting equipment significantly affects motor performance. Faulty starters, such as those with missing phases or contactor arcing, can cause motor burnout. Regular cleaning, tightening, and inspection of contacts and coils are essential. Dust and rust on contactor cores can cause poor engagement, noise, and coil overheating. Maintaining electrical control systems in a dry, clean, and accessible location ensures smooth starts and safe operation.
By following these guidelines, industries can significantly reduce the risk of motor burnout, improve operational efficiency, and extend the lifespan of their equipment.
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Editor: Dalan Oil Pump Motor 02 - Procurement Consultant
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